Skip to content
Let's talk!

Backend Engineer · Davis, CA · Available Jun 2026

Hi, I'm

SHADAB HOSSAIN SHAIKH

I build backend systems that hold up under LOAD.

Distributed caches, event-driven pipelines and LLM infrastructure serving millions of requests in production.

3 yrs @ Target Corp · Agent observability @ Pilotcrew AI · MS ECE @ UC Davis

AVAILABLE
JUN 2026
Will relocate
70%P95 latency cut
$80KAnnual savings
30+Services on my APIs
4 yrsProduction engineering

Projects

Seven systems I designed, shipped and measured

PILOTCREW · OBSERVABILITY agent-runtime · last 1h P95 LATENCY 412ms ERROR RATE 0.2% COST / RUN $0.014 TOKENS 6,204 TRACE 4f2a·91c · SPAN WATERFALL AGENT LLM TOOL LLM TOOL ✓ 5 spans · 1.9s · $0.0142 P95 ROLLUP · 5m 1m · 5m · 1h · 1d OTLP/OPENINFERENCE INGEST · COST DERIVATION · TIME-SERIES ROLLUPS

2025–2026 · Pilotcrew AI · Solo-owned service

Agent Observability Platform

Production observability for LLM agents, built from my own PRD. OTLP/OpenInference telemetry ingest, AGENT→LLM→TOOL span waterfalls, token-cost derivation, and p95/error/cost time-series rollups at four granularities, with non-blocking emission that can never slow an agent run.

Python · FastAPIOpenTelemetryMongoDB RedisNode EmitterReact Dashboards
Live
CASCAIDE · INCIDENT CVE-2026-1337 · axios@1.6.x MITIGATION: TRANSPLANT IMPACT GRAPH axios files aliased ⚠ call sites TRANSPLANT PIPELINE · SSE LIVE ✓ RECALLcall sites gathered ✓ REWRITEaxios → fetch wrapper ✓ VALIDATEbuild + tests pass ▶ VERIFY JUDGES APPROVE · APPROVE1 PENDING behavior diff: 0 regressions - const res = await axios.get(url, { headers }) + const res = await httpGet(url, { headers }) // fetch wrapper · behavior-preserving 12 call sites patched · sandboxed build/test ✓ · multi-judge review

2026 · AI × Supply-chain security · Autonomous pipeline

cascAIde

A dependency transplant engine for vulnerable packages. Scans a GitHub repo into a dependency + call-site impact graph (catching aliased imports grep misses), fires a mock CVE incident, then autonomously rewrites axios call sites to a behavior-preserving fetch wrapper, verified by sandboxed build/test checks, behavioral comparison, and a multi-judge LLM review with live SSE pipeline streaming. Ports-and-adapters architecture runs fully offline on fake adapters.

Python 3.14 · FastAPIReact 18 · TSSSE Hexagonal ArchitectureMulti-Judge LLMDocker
Live demo
ONTASK · FOCUS BROWSER MiniLM local · Groq assist TASK: Write my statement of purpose LOCKED FOR SESSION RECOMMENDATION FEED · ANY SITE Writing a strong SOP: structure on-task · kept 0.84 hidden · off-task show anyway Grad school essay examples on-task · kept 0.79 hidden · off-task show anyway RELEVANCE ENGINE MiniLM · on device embeddings decide most items offline OFFAMBIGUOUSON Groq tiebreak 2 calls task expand + ambiguous items only 14 scored · 6 hidden · 0 telemetry NAVIGATION GUARD blocked 3 off-task jumps fail open on outage · fail closed on ambiguity · sign-in and navigational search always pass ELECTRON · BUILT ON MIN · APACHE-2.0 · MACOS / WINDOWS / LINUX BUILDS

2026 · Desktop app · Local-first AI

OnTask NEW

A focus browser that holds you to one task. You set a single task when the browser opens, it is pinned for the whole session, and one relevance judgment is applied across three surfaces: recommendation feeds on any site, cross-domain navigation, and page loads. A bundled MiniLM model decides most items on device; Groq is consulted exactly twice, to expand the task and to break genuine ties. Every hidden item keeps a one-click "show anyway", and the engine fails open on outage but closed on ambiguity, so it never bricks the web.

Electron · Node 24MiniLM embeddingsGroq Playwright E2EBuilt on MinApache-2.0
MEMHANDOFF · OPEN-CONTEXT local-first · offline · no api key CLI · THREE COMMANDS $ open-context handoff agent-a.jsonl ✓ 42 msgs → demo/export.ctx $ open-context validate export.ctx ✓ archive intact · schema ok $ open-context compile --target generic → agent-b-context.json · 787/800 tok $ THE HANDOFF AGENT A · claude code .ctx portable · inspectable stays on your machine AGENT B · any model WHAT AGENT B RECOVERS ✓ encoding + byte-order mark ✓ two exact row counts ✓ forbidden storage location ✓ deployment constraint ✓ rejected Kafka approach ✓ who owns port 9443 APACHE-2.0

2026 · Open source · Agent interoperability

MemHandoff NEW

Moves useful working context from Agent A to Agent B. A local-first CLI that turns an agent transcript into a portable, inspectable .ctx file, then compiles it into context another agent can actually continue from, under a token budget. Reads Claude Code transcripts and generic JSON Lines; the conversation never leaves your machine unless you opt into model-based extraction. The offline example hands a coding session to a different model and checks it recovers the exact facts that usually vanish: encodings, row counts, forbidden paths, and the approach that was already rejected.

PythonCLI · open-contextContext compaction Local-firstPyPIApache-2.0
claude-code $ claude /orchestrate build-payment-service ├─architectunit plan · interfaces · invariants ├─coderunit 3/7 · dependency order ├─testeradversarial inputs · PASS/FAIL └─trackerstatus table · deliverable gates units 4/7 PASS $ claude /discuss · write tools locked, read-only turn 2 PLUGINS · MIT · github.com/0sha-dow0

2026 · Open source · Developer tooling

Claude Code Plugins

Two published plugins. multiagent-build: an /orchestrate command coordinating four subagents (architect, coder, tester, tracker) through TDD in strict dependency order. discuss-mode: hook-based guardrail that blocks all file-mutating tools for a turn via PreToolUse deny, scoped by hashed session markers.

Claude Code SDKSubagentsHooks API PythonTDD OrchestrationMIT
GitHub
1 2 3 4 5 map settled, summarizing area… + − ⌕ Davis, CA FREE FAMILY OUTDOOR ✦ AI AREA SUMMARY 1 UC Davis Arboretum NATURE · FREE · OUTDOOR 2 Farmers Market FOOD · FAMILY-FRIENDLY 3 Manetti Shrem Museum MUSEUM · INDOOR · RE-GEOCODED ✓ GEMINI · GROQ · OLLAMA · CACHE 92%

2026 · Full stack · AI backend

AI Map Explorer

The map is the input: stop panning and a debounced settle-detector triggers an AI-written area summary with 5 re-geocoded places. Provider-agnostic LLM layer (Gemini/Groq/Ollama) behind one contract, versioned prompts with JSON-schema-constrained output, and five geospatially-bucketed caches (~5 km grid, 30-day TTL) slashing redundant AI calls. Fully offline test suite.

Node · ExpressReact 18 · ViteLLM Abstraction node-cacheMapLibre GLNominatim
Live demo
⌕ 95616 ZIP NEAREST STORE Target · Davis #1847 1.2 mi · open until 10pm lookup: 0.8ms · rocksdb MongoDBsource of truth Kafkainvalidation events RocksDBhot-swap · precomputed P95−70%

2022–2025 · Target Corporation · Production

Target Proximity Platform

The backend behind Target's store lookup at national scale. Pre-computed 3,000+ store distances into RocksDB for sub-millisecond reads, with a Kafka cache-invalidation pipeline hot-swapping MongoDB snapshots. P95 latency down 70%, CPU down 60%, zero downtime on data refreshes.

Java · Spring BootRocksDBKafka MongoDBGraphQLWebSockets
See it live

What I build

The through-line in everything I ship: backend systems where latency, throughput, and cost are measured, then improved. Every one of these ran in production.

Low-Latency Serving

Pre-computed lookups in RocksDB replacing on-the-fly computation, for sub-millisecond reads across 3,000+ entities.

P95 −70% · CPU −60%

Event-Driven Pipelines

Kafka-driven cache invalidation with MongoDB → RocksDB hot-swaps; real-time log processing across enterprise systems.

Zero-downtime deploys

API Platforms

A single GraphQL layer standardizing data retrieval across Target: schema design, resolvers, caching, versioning.

30+ internal services

LLM & Agent Infra

Agent observability (traces, spans, cost), automated evaluation pipelines, and provider-agnostic LLM backends.

OTLP · Evals · Multi-provider

Data Pipelines

Automated S3 pipelines with daily refresh cycles replacing manual workflows and third-party data providers.

Infra cost −95%

Geospatial Systems

Proximity search, ZIP-to-store intelligence, and multi-stop route planning. The domain where I learned to scale backends.

All U.S. markets

Experience journey

  1. 2025 – 2026

    Software Engineer, Agent Infrastructure @ Pilotcrew AI

    Remote · Davis, CA · LLM Infra

    Designed and built an LLM-agent observability platform from PRD to production. OTLP/OpenInference telemetry normalized into AGENT → LLM → TOOL span waterfalls.

    Read the details
    • Designed and built an LLM-agent observability platform from PRD to production. OTLP/OpenInference telemetry ingest normalized into AGENT → LLM → TOOL span waterfalls. → Solo-owned microservice
    • Built the time-series aggregation worker: p95 latency, error rate, token and cost rollups at 1m/5m/1h/1d granularities, with per-token cost derivation from model pricing.
    • Engineered non-blocking, best-effort telemetry emission with a kill switch, so instrumentation can never slow or break a live agent run.
    • Contributed to AutoEval, a self-improving agent evaluation pipeline: multi-model consensus gold-labeling, ensemble judging, adversarial test generation, Redis + SSE live pipeline streaming. → 60% → 78% holdout pass rate
    • Layered architecture (routes → services → repositories) fully testable with zero DB or network, on mongomock + in-memory implementations.
  2. Aug 2022 – Aug 2025

    Software Engineer, Location Platform Backend @ Target Corp

    Bengaluru, India · 3 years · Production

    Re-architected the store-proximity API around pre-computed RocksDB lookups and a Kafka cache-invalidation pipeline, and replaced Microsoft MapPoint with an in-house platform.

    Read the details
    • Re-architected the store-proximity API by pre-computing 3,000+ location distances into RocksDB. → P95 latency −70%, CPU −60%
    • Built a Kafka-driven cache-invalidation pipeline with automatic MongoDB → RocksDB hot-swaps. → Zero-downtime data refreshes
    • Designed a custom GraphQL API standardizing data retrieval for 30+ internal services.
    • Replaced Microsoft MapPoint end-to-end with an in-house platform: search, visualization, route planning. → $80K/year saved
    • Hardened the Locations platform for peak traffic: +40% reliability, 30% faster responses during high-traffic sales events.
    • Built nationwide ZIP-to-store intelligence powering Google Ads targeting across all U.S. markets.
    • Streamed real-time data to maps via Kafka consumers publishing over WebSockets, so the frontend stays smooth at high throughput.
    • Architected an automated S3 data pipeline with daily refresh cycles. → 95% infra cost reduction vs third-party
    • Led an Electronic Shelf Label automation POC enabling live in-store price updates. → Manual effort −50%
  3. Oct 2024 – Aug 2025

    Lead Software Engineer, Full Stack @ Goldberry Live

    Bengaluru, India · Solo tech lead

    I was the entire engineering team, system design through deployment. Built an artist/venue marketplace from scratch with real-time chat, Stripe payments and full auth.

    Read the details
    • I was the entire engineering team, from system design through deployment. Every decision was mine.
    • Built an artist/venue marketplace from scratch. → 25 users in month one
    • Real-time chat, Stripe payments, and full authentication system.
    • Set up CI/CD pipelines end-to-end. → Release cycles cut 50%
  4. Mar – Apr 2021

    Intern, Embedded Systems @ Hindustan Aeronautics Limited

    Bengaluru, India · HAL

    Developed signal conversion algorithms for the Health and Usage Monitoring System (HUMS) and optimized the aircraft diagnostic processing pipeline.

    Read the details
    • Developed signal conversion algorithms for the Health and Usage Monitoring System (HUMS).
    • Optimized the aircraft diagnostic processing pipeline. → Diagnostic time −37%

Skills

Highlighted chips are what I reach for first

Backend

Java Spring BootNode.jsPython · FastAPIGraphQLTypeScriptREST APIs

Distributed Systems

KafkaRocksDBRedisWebSocketsCaching StrategiesEvent-Driven Design

Data & Infra

MongoDBPostgreSQLMySQLAWS S3DockerLinux

LLM & Agents

OpenTelemetryAgent EvalsClaude Code SDKMCP ToolingPrompt EngineeringAnthropic · OpenAI SDK

Frontend

ReactViteTailwindMapLibre GL

Practices

System DesignCI/CD · JenkinsTDDAgile/ScrumGit

Research publications

Quantum Computing ALU

IRJET · 2022–2024 · Peer reviewed

7-qubit ALU on IBM quantum hardware, 16-qubit simulation with Qiskit.

Blockchain in Education

IRJET · 2022 · Peer reviewed

Distributed ledger with real-time data immutability for educational records.

Education

MS Electrical & Computer Engineering

University of California, Davis

Sep 2025 – Jun 2026 · GPA 3.66/4.0 · Davis, CA

BE Electronics & Communication

Dr. Ambedkar Institute of Technology

Aug 2018 – Jun 2022 · CGPA 8.57/10 · Bengaluru

Let's build
something that scales!

Open to backend & SDE roles, new grad June 2026, will relocate. If you're hiring, collaborating, or scaling a backend, the payload box is right below.

Ping my inbox

Hiring, collaborating, or scaling a backend? Payload below. P95 response time: same day.